Haw. Rev. Stat. § 11-108.5: Validity of cast mail-in ballot where voter later becomes ineligible.

The mail-in ballot of any voter who was eligible to vote at the time the ballot was cast shall not be deemed invalid solely because the voter became ineligible to vote, including by death of the voter, after casting the ballot. For the purposes of this section, "cast" means that the voter has:

(1) Returned the return identification envelope containing the optional secrecy envelope or secrecy sleeve with the marked ballot in any manner permitted pursuant to section 11-104(c); or

(2) Completed voting in person at a voter service center.